Features: 1.The dynamic turn signal wiring harness will bring a distinctive and unique appearance to your car. Fit for A4 S4 Avant B8.5 Facelift 2013?2016. 2.The delay level can be adjusted on the module. There are 10 levels from 0 to 9. "0" means no delay, and an increase of 1 level in turn means the delay is superimposed by 10ms. 3.The module slightly delays the control of the external steering signal, which produces special effects. 4.Plug?and?play harness can produce the desired effect without coding, no complex steps required. 5.Processed with high?quality materials of PBT+FEP, wear?resistant, high?temperature resistant, and have a long service life. Specification: Item Type: Dynamic Turn Signal Blinker Module Material: PBT+FEP Specification: 5-Pin Quantity: A pair of left and right Installation Method: Plug and Play Fitment: Fit for A4/S4 Avant B8.5 Facelift 2013-2016 (Only For Taillight With Following OE Number: 8K9 945 095 D / 8K9 945 096 D 2013-2016) Note: 1. Professional Installation is Highly Recommended. 2. Confirm whether the OE number of the original taillight is within this compatibility. 3. Please double check the part number of your item, matching information is for reference only. 4. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!